Instantaneous Velocity

Nov 2009
54
0
Find the instantaneous velocity of \(\displaystyle sin(2x)\) at \(\displaystyle x=1\).

I tried applying the definition of derivative at a point and then using trig identities (double angle, sum), but what I ended up, zero, with didn't make sense. How should this be calculated?

Thanks
 
Nov 2009
54
0
Instructor wants me to use the definition of derivative at a point, not a derivative formula.
 

mr fantastic

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Find the instantaneous velocity of \(\displaystyle sin(2x)\) at \(\displaystyle x=1\).

[snip]
That makes no sense. Go back and check the question. Is it meant to be x = sin(2t)?